Explain why the function is discontinuous at the given number a. (Select all that apply.) x2 x2 - 4 2x if x + 2 f(x) a = 2 if x = 2 lim f(x) does not exist. f(2) is defined and lim f(x) is finite, but they are not equal. lim f(x) and lim f(x) are finite, but are not equal. x→2+ f(2) is undefined. none of the above Sketch the graph of the function.

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